The men, both from Middlesbrough, were arrested after an altercation while the train was at York station.

Investigating officer Dave Knox, of British Transport Police, said: “The victim, a 24-year-old from Stockton, was sitting alone when he was approached by two men who boarded the service at York as part of a larger group.

“A verbal altercation took place between the three which quickly turned into a fight.

“The incident was quickly broken up by fast-thinking passengers on board the train and all three were taken off the train by officers.”

The victim was left with a cut lip, and bruising to the face.

A 21-year-old and a 22-year-old, both from Middlesbrough, were arrested and have since been bailed until Sunday, April 17 pending further inquiries.

British Transport Police is now appealing for witnesses to the incident, which happened on Saturday, March 5.

It started at around 9.50pm as the 7.40pm Kings Cross to Sunderland service was waiting at the station.

PC Knox added: “This was a very frightening incident for many of the passengers who were simply trying to make their way home. But thanks to those who stepped in to intervene, we were able to arrest the men.

“If anyone was on the 7.40pm Kings Cross to Sunderland service and who witnessed the incident, I’d urge you to contact British Transport Police on 0800 40 50 40 quoting background reference B5/NEA of 18/03/2011.”